| 复合材料凝固过程中颗粒推移距离及其影响因素 |
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| 引用本文： | 于化顺,陈熙琛.复合材料凝固过程中颗粒推移距离及其影响因素[J].金属学报,1999,35(7):781-784. |
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| 作者姓名： | 于化顺 陈熙琛 |
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| 作者单位： | [1]山东工业大学材料学院 [2]中国科学院物理研究所 |
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| 基金项目： | 山东省自然科学青年基金，金属精密热加工国防科技重点实验室资助 |
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| 摘 要： | 研究了颗粒含量对自生ＭｇＯ／Ｍｇ２Ｓｉ颗粒增强Ｍｇ－１１Ｌｉ基复合材料凝因组织的影响，得出颗粒被界面俘获成推移的热力学条件及颗粒推移距离表达式，随颗粒含量和凝固速度增加以及推移临界速度的减小，推移距离减小，理论分析与实验结果一致，并提出了改善颗粒增强复合材料组织均匀性的主要途径。
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| 关 键 词： | 复合材料 凝固 颗粒推移距离 影响因素 镁基 |
STUDY ON PARTICLE PUSHING DISTANCE DURING SOLIDIFICATION OF PARTICULATE REINFORCED COMPOSITES |
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| YU Huashun, MIN Guanghui, ZHAO Shengxu.STUDY ON PARTICLE PUSHING DISTANCE DURING SOLIDIFICATION OF PARTICULATE REINFORCED COMPOSITES[J].Acta Metallurgica Sinica,1999,35(7):781-784. |
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| Authors: | YU Huashun MIN Guanghui ZHAO Shengxu |
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| Abstract: | The effect of particle mass fraction on the microstructure of MgO/Mg2Si particles reinforced Mg-11Li composites was investigated. The thermal condition of particle capturing/ pushing and the expression of pushing distance of particles were built. The pushing distance reduces with increasing the particle fraction and solidification rate, and decreasing the pushing critical rate. The theoretical conclusion is in accordance with experimental results, and the main ways of improving the particle distribution of particulate reinforced composites were suggested. |
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| Keywords: | composite solidification particle pushing distance |
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